commit 2b4ed5da1d599190c3be0084ee235b0a8f0a75ea
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Mon May 21 07:51:00 2018 -0700
committer INADA Naoki <methane@users.noreply.github.com> Mon May 21 23:51:00 2018 +0900
tree aabaae9d692116c560f5d00fdfe98dc1ea76f6d4
parent 316f86911a369a1c8f6f3a94620f1bdecefe59b2

bpo-33583: Add note in PyObject_GC_Resize() doc (GH-7021)

(cherry picked from commit 1179f4b40f375af5c59cd4b6be9cc313fa0e1a37)

Co-authored-by: INADA Naoki <methane@users.noreply.github.com>

Doc/c-api/gcsupport.rst

diff --git a/Doc/c-api/gcsupport.rst b/Doc/c-api/gcsupport.rst
index f5e0d7e..7f54b6a 100644
--- a/Doc/c-api/gcsupport.rst
+++ b/Doc/c-api/gcsupport.rst
@@ -49,7 +49,7 @@
 .. c:function:: TYPE* PyObject_GC_Resize(TYPE, PyVarObject *op, Py_ssize_t newsize)
 
    Resize an object allocated by :c:func:`PyObject_NewVar`.  Returns the
-   resized object or *NULL* on failure.
+   resized object or *NULL* on failure.  *op* must not be tracked by the collector yet.
 
 
 .. c:function:: void PyObject_GC_Track(PyObject *op)